Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1124
ducing their maximum elec-tromotive force, while the pair of coils at right angles to Operation of Dynamos 1089 them is generating practically no electromotive force. Thebrushes are placed on the segments of the four-part com-mutator^ so as to collect only the current generated by thetwo horizontal… … Fig. 469 fluctuations will be diminished by the addition of morecoils to the armature. Pig. 469 shows the connections of an eight-coil brusharc generator. Each bobbin is connected in series withthe one diametrically opposite. The connection is notshown on the diagram. It will be noticed that of…
